Nagarajan, R and Patel, RK and Bid, A (2023) Resistance fluctuation spectroscopy of phase transitions in (La 0.2 Pr 0.2 Nd 0.2 Sm 0.2 Eu 0.2)NiO3thin films. In: Applied Physics Letters, 122 (10).
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Abstract
The study of phase transitions is crucial to understanding the physics of materials and utilizing them for technological applications. This article presents a detailed analysis of the electronic transport properties of high entropy oxide thin films. We observe an increase in resistance fluctuations across a first-order phase transition. We show that the noise arises from an electronic phase separation accompanying the spin ordering due to the formation of domains of localized and delocalized charges. We conclude that due to charge disproportionation, the charge carriers form domains of localized and delocalized electrons in this system. Our study establishes the existence of multiple states with near equal energy in such complex oxide thin films. © 2023 Author(s).
| Item Type: | Journal Article |
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| Publication: | Applied Physics Letters |
| Publisher: | American Institute of Physics Inc. |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | Neodymium; Oxide films; Thin films, Electronic phase separation; Electronic transport properties; First-order phase transitions; Fluctuation spectroscopy; Localised; Oxide thin films; Resistance fluctuation; Spin order; Technological applications; Thin-films, Phase separation |
| Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 05 Apr 2023 06:15 |
| Last Modified: | 05 Apr 2023 06:15 |
| URI: | https://eprints.iisc.ac.in/id/eprint/81156 |
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